Heat transfer device



June 6, 1967 w. H. ARMSTRONG HEAT TRANSFER DEVICE Filed April 26, 1965INVENTOR. w! a United States Patent 3,323,582 HEAT TRANSFER DEVICEWilliam H. Armstrong, 197 Sandwich St., Plymouth, Mass. 02360 Filed Apr.26, 1965, Ser. No. 450,840 2 Claims. (Cl. 165-49) This invention relatesto a heat transfer device.

Reference is made to my pending patent application Ser. No. 385,978,filed July 29, 1964.

One object of my invention is to provide a heat transfer device whichcan be used with stock radiation panels commonly used to assembleceilings.

Another object is to provide such a device that includes -a conduit forthe heating fluid without having to include an outside cover for theconduit.

Still another object is to provide such a device that includes heattransfer members that are integral with said conduit and which receiveand hold the sides of two adjoining panels between them.

A further object is to form my device as an integral uiiit, thussimplifying its production and also making it possible to use a materialof high thermal conductivity, such as aluminum, and that is alsorelatively light in weight and low in cost.

The foregoing and other objects which will appear as the nature of theinvention is better understood, may be accomplished by a construction,combination and arrange ment of parts such as is disclosed by thedrawing. The nature of the invention is such as to render it susceptibleto various changes and modifications, and, therefore, I am not to belimited to the construction disclosed by the drawing nor to theparticular parts described in the specification; but am entitled to allsuch changes therefrom as fall within the scope of my claims.

In the drawing:

FIG. 1 is a perspective view showing my heat transfer device connectedto two metallic panels.

FIG. 2 is a fragmentary top plan view of the device and panels shown inFIG. 1.

FIG. 3 is an end elevational view of the device and panels shown in FIG.1, with the addition of a supporting beam.

FIG. 4 is an enlarged, sectional view taken on the line 44 of FIG. 2.

FIG. 5 is an enlarged, sectional view taken on the line 55 of FIG. 2.

FIG. 6 is an enlarged, perspective view of a mounting member for mydevice.

FIG. 7 is a sectional view, similar to said FIG. 4, omitting the panel,and showing a modified form of conduit.

As illustrated, my heat transfer device has an elongate conduit 10which, as shown, is an elongate tube that is circular in cross section.Heat transfer members 12 and 14 are spaced apart as at 15, and extendoutwardly from said conduit 10 and are preferably formed integraltherewith of a metal of high thermal conductivity such as aluminum.

Said heat transfer members 12 and 14 each has an inner holder portion 16and 16a respectively which are shown extending slightly diagonallyoutward from said conduit. Extending from said inner holder portions 16and 16a are outer bead or protruding portions 18 and 18a respectivelywhich provide opposite thereto inner recesses 20 and 20a respectively.Extending from said bead portions 18 and 18a the holder portionscontinue as outer holder portions 22 and 22a from which respectivelyextend connector portions 24 and 24a diagonally outward.

Flat contact portions 26 and 26a extend respectively outward from saiddiagonal portions 24 and 24a.

3,323,582 Patented June 6, 1967 ice To attach said heat transfer deviceto a building beam 28 or other external support I provide a mountingmember 30 slidable on said conduit. Said member 30 has twoarcuate-shaped sides 32 and 34 that extend part way 3 around saidconduit 10 and which have retaining portions 36 and 38 respectivelyextending from said sides. A connector 40 is held between said retainingportions 36 and 38 by a bolt 42 extending through it and the latter twoportions, being held by a nut 44.

Said connector 40 extends beyond said portions 36 and 38 and may beconnected to a support such as said beam 28 by a screw 46 extendingthrough a hole .provided therein.

My device is used in combination with well known metal panels 50 eachhaving a perforated face 52 the inner surface of which is commonlyprovided with a bead or ridge 54 extending crosswise as shown. Thesebeads 54 are formed at a predetermined distance apart, such as 12 inchesas when a relatively long panel is used. Said panel 50, as shown, hastwo relatively long sides 56 and 58 extending angularly from said face52 and also two relatively short sides 60 and 62 similarly extendingfrom said face.

Each of said sides 56, 58, 60 and 62 has a beaded portion 64 at theinner surface thereof intermediate the outer and inner extremities ofeach of said sides.

In said FIG. 7, I show a modified form of conduit 10 having inwardlyprojecting fins 66 at the interior. These serve to quiet the flow offluid should it be under pressure suiiiciently to cause a noise as itflows.

In use, a long side 56 of one panel and a long side 58 of another panelas shown, adjoin each other. Both of these sides extend into the space15 provided in my heat transfer device. The said panel beaded portions64 on each of the two sides 56 and 58 extend into the inner recesses 20and 20a. Said contact portions 26, and 26a contact the faces of the twoadjoining panels which is necessary to get efiicient heat transferencefrom my device to said panels.

Since my device will commonly extend more than the distance between onesaid short side 60 or 62 and a said bead 54, and may extend more thanthe distance between said two short sides 60 and 62, I provide cut-outs70 in said heat transfer members 12 and 14 that extend through saidholding portions 22 and 22a, said diagonal portions 24 and 24a and saidcontact portions 26 and 26a.

These cut-outs 70 are deep enough to permit said contact portions 26 and26a to lie flat on said panel faces 52 where any of said panel sides areencountered.

Said panels, when installed, occupy the space below the conduits andpresent a heat radiation surface to the room. A fluid, such as hotwater, for instance, or a cooling fluid, is circulated under pressurethrough said conduits 10, from supply conduits, not shown, and the heatexchange occurs, by means of said heat transfer members 12 and 14 andthe contact of said contact portions 26 and 26a with said panel faces52.

What I claim is:

1. A heat transfer device in combination with two rectangularly-shapedpanels each having a face portion and four sides extending angularlyfrom the latter, one said side of one said panel adjoining a said sideof the other said panel, a bead projecting from the inner surface ofeach said face portion and extending crosswise thereof between two ofsaid sides of each said panel respectively that are oppositely disposed,two other of said sides of each said panel being oppositely disposed,said device embodying an elongate and integral conduit of metal that iscontinuously circular in cross-section, and two heat transfer membersspaced apart integral with and extend ing outwardly from said conduit,said adjoining sides' extending into the space between said heattransfer members, each of the latter embodying a contact portionextending angularly from the adjoining portion and respectivelycontacting a said panel face portion, each said transfer member havingcut-outs therein into which said other two oppositely disposed sides andsaid bead respectively extend.

2. A heat transfer device as set forth in claim 1, said 4 ReferencesCited UNITED STATES PATENTS 2,322,341 6/1943 Booth 165179 2,662,74412/1953 Leadbetter et al. 165-185 X 2,662,745 12/1953 Iorn et a1. 1651852,930,405 3/1960 Welsh 165-179 X FOREIGN PATENTS 730,005 5/1955 GreatBritain.

adjoining sides being relatively long and said other oppom ROBERT A.OLEARY, Primary Examiner.

sitely disposed sides being relatively short.

A. DAVIS, Assistant Examiner.

1. A HEAT TRANSFER DEVICE IN COMBINATION WITH TWO RECTANGULARLY-SHAPEDPANELS EACH HAVING A FACE PORTION AND FOUR SIDES EXTENDING ANGULARLYFROM THE LATTER, ONE SAID SIDE OF ONE SAID PANEL ADJOINING A SAID SIDEOF THE OTHER SAID PANEL, A BEAD PROJECTING FROM THE INNER SURFACE OFEACH SAID FACE PORTION AND EXTENDING CROSSWISE THEREOF BETWEEN TWO OFSAID SIDES OF EACH SAID PANEL RESPECTIVELY THAT ARE OPPOSITELY DISPOSED,TWO OTHER OF SAID SIDES OF EACH SAID PANEL BEING OPPOSITELY DISPOSED,SAID DEVICE EMBODYING AN ELONGATE AND INTEGRAL CONDUIT OF METAL THAT ISCONTINUOUSLY CIRCULAR IN CROSS-SECTION, AND TWO HEAT TRANSFER MEMBERSSPACED APART INTEGRAL WITH AND EXTENDING OUTWARDLY FROM SAID CONDUIT,SAND ADJOINING SIDES EXTENDING INTO THE SPACE BETWEEN SAID HEAT TRANSFERMEMBERS, EACH OF THE LATTER EMBODYING A CONTACT PORTION EXTENDINGANGULARLY FROM THE ADJOINING PORTION AND RESPECTIVELY CONTACTING A SAIDPANEL FACE PORTION, EACH SAID TRANSFER MEMBER HAVING CUT-OUTS THEREININTO WHICH SAID OTHER TWO OPPOSITELY DISPOSED SIDES AND SAID BEADRESPECTIVELY EXTEND.